| Título |
Measurement of the anomalous like-sign dimuon charge asymmetry with 9fb-1 of pp̄ collisions |
| Tipo |
Revista |
| Sub-tipo |
JCR |
| Descripción |
Physical Review D |
| Resumen |
We present an updated measurement of the anomalous like-sign dimuon charge asymmetry Aslb for semileptonic b-hadron decays in 9.0fb-1 of pp̄ collisions recorded with the D0 detector at a center-of-mass energy of √s=1.96TeV at the Fermilab Tevatron collider. We obtain Aslb=(-0.787±0.172(stat)±0.093(syst))%. This result differs by 3.9 standard deviations from the prediction of the standard model and provides evidence for anomalously large CP violation in semileptonic neutral B decay. The dependence of the asymmetry on the muon impact parameter is consistent with the hypothesis that it originates from semileptonic b-hadron decays.
|
| Observaciones |
DOI: 10.1103/PhysRevD.84.052007 |
| Lugar |
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| País |
Estados Unidos |
| No. de páginas |
1-24 |
| Vol. / Cap. |
Vol 84, Issue 5 |
| Inicio |
2011-09-16 |
| Fin |
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| ISBN/ISSN |
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